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14 Questions about Counting Casualties in Syria

In early 2012, HRDAG was commissioned by the UN Office of the High Commissioner for Human Rights (OHCHR) to do an enumeration project, essentially a count of all of the reported casualties in the Syrian conflict. HRDAG has published two analyses so far, the first in January 2013, and the second in June 2013. In this post, HRDAG scientists Anita Gohdes, Megan Price, and Patrick Ball answer questions about that project. So, how many people have been killed in the Syrian conflict? This is a complicated question. As of our last report, in June 2013, we know that there have been at least 93,000 reported, identifiable conflict-related casualties. The ...

Kosovo

During the conflict between NATO and Yugoslavia in early 1999, hundreds of thousands of people fled Kosovo, and thousands more were killed. Who were the perpetrators? Statistical analysis helped answer this question. While at the American Association for the Advancement of Science (AAAS), members of the HRDAG team wrote several reports on the conflict. With partners at ABA CEELI (American Bar Association/Central European and Eurasian Law Initiative), HRDAG submitted an expert report that was used in the trial of former Yugoslav president Slobodan Milošević at the  ICTY (International Criminal Tribunal for the Former Yugoslavia) in The  Hague, ...

Timor-Leste

During the violence in Timor-Leste in June 2006, armed gangs broke into the offices of the Commission for Reception, Truth and Reconciliation (CAVR) in Dili and stole their motorbikes. The Human Rights Data Analysis Group, then at Benetech®, and other human rights observers wondered whether the mobs would soon return to loot the irreplaceable paper records used by the CAVR to compile their definitive report entitled "Chega!" The Benetech Initiative contributed to the CAVR findings and released a separate statistical report (PDF) establishing that at least 102,800 (+/- 11,000) Timorese died as a result of human rights violations in Timor-Leste ...

Rionegro

Text in English El uso de información de cementerios en la búsqueda de los desaparecidos: lecciones de un estudio piloto en Rionegro, Antioquia, Colombia Entre mayo y julio de 2009, investigadores del Grupo de Análisis de Datos de Derechos Humanos de Benetech (HRDAG por su sigla en inglés), condujeron un estudio piloto que examinó los patrones de la información sobre los cadáveres sin identificar en el cementerio de Rionegro, un municipio en el departamento de Antioquia, Colombia. El estudio se realizó en apoyo a los actuales esfuerzos de la organización socia de HRDAG, EQUITAS (Equipo Colombiano Interdisciplinario de Trabajo Forense y ...

The task is a quantum of workflow

This post describes how we organize our work over ten years, twenty analysts, dozens of countries, and hundreds of projects: we start with a task. A task is a single chunk of work, a quantum of workflow. Each task is self-contained and self-documenting; I'll talk about these ideas at length below. We try to keep each task as small as possible, which makes it easy to understand what the task is doing, and how to test whether the results are correct. In the example I'll describe here, I'm going to describe work from our Syria database matching project, which includes about 100 tasks. I'll start with the first thing we do with files we receive ...

The case of Ana Lucrecia Orellana Stormont

When working with documents in an archive, every document offers the opportunity for statistical study and quantitative research. But a document can also offer the discovery of a story. That is the case with the disappearance of Ana Lucrecia Orellana Stormont, who was reported missing on June 6, 1983, at the age of 35. Ana Lucrecia, a professor of psychology at the University of San Carlos, was scheduled to attend a meeting with Edgar Raúl Rivas Rodríguez at the Plaza Hotel in Guatemala’s capital city. Edgar, who also went missing, was a teacher at the School of Political Science at the University. (Ana Lucrecia’s case is explained more fully ...

La estadística de mortalidad del conflicto en Perú

En ese artículo respondemos a una crítica del estudio de mortalidad que realizamos para la Comisión de la Verdad y Reconciliación en 2003.

Scraping for Pattern: Protecting Immigrant Rights in Washington State

With HRDAG's help, the University of Washington Center for Human Rights team has been able to analyze the scraped text and search for key words such as “jail” in order to gain insight into where immigration arrests are being made.

Communiqué de presse, Tchad, January 2010

Une Nouvelle Etude Démontre qu’ Hissène Habré supervisait les Prisons de la Police Politique où des Milliers de Personnes Sont Décédées. 10ème Anniversaire de l’Inculpation de l’Ancien Dictateur Tchadien Janvier 29, 2010, N’Djaména, Tchad, Palo Alto, CA, Etats-Unis – A l’occasion du 10ème anniversaire de la première mise en accusation d’Hissène Habré au Sénégal, le Groupe d'Analyse des Données de Droits Humains de Benetech (GADDH) a réalisé une nouvelle étude qui démontre que l’ancien dictateur tchadien était bien informé des politiques et des pratiques de sa police politique. Cette étude pourrait s’avérer ...

The Statistics of Mortality Due to Conflict in Peru

A key point is that human rights data collection prior to the TRC largely ignored violence by the Shining Path.

FAQs on Predictive Policing and Bias

Last month Significance magazine published an article on the topic of predictive policing and police bias, which I co-authored with William Isaac. Since then, we've published a blogpost about it and fielded a few recurring questions. Here they are, along with our responses. Do your findings still apply given that PredPol uses crime reports rather than arrests as training data? Because this article was meant for an audience that is not necessarily well-versed in criminal justice data and we were under a strict word limit, we simplified language in describing the data. The data we used is a version of the Oakland Police Department’s crime report...

Lessons at HRDAG: Making More Syrian Records Usable

If we could glean key missing information from those fields, we would be able to use more records.

Open Source Summit 2018

On October 23, 2018, Patrick Ball keynoted at the Open Source Summit in Edinburgh, Scotland.

Press Release, Chad, January 2010

NEW STUDY DOCUMENTS HISSÈNE HABRÉ’S OVERSIGHT OF POLICE PRISONS WHERE THOUSANDS DIED 10th Anniversary of Indictment of Chad Ex-Dictator January 29, 2010, N’Djamena, Chad and Palo Alto, CA, U.S. - On the 10th anniversary of the first indictment of Hissène Habré in Senegal, the Benetech Human Rights Data Analysis Group (HRDAG) released a new study showing that the former Chadian dictator was well informed of the hundreds of deaths that occurred in prisons operated by his political police. This information could be critical in the long delayed prosecution of Habré who has been accused of killing and systematically torturing thousands of politi...

Chad – FAQs

State Coordinated Violence in Chad under Hissène Habré -- [Français]      

Multiple Systems Estimation: Stratification and Estimation

<< Previous post, MSE: The Matching Process Q10. What is stratification? Q11. [In depth] How do HRDAG analysts approach stratification, and why is it important? Q12. How does MSE find the total number of violations? Q13. [In depth] What are the assumptions of two-system MSE (capture-recapture)? Why are they not necessary with three or more systems? Q14. What statistical model(s) does HRDAG typically use to calculate MSE estimates? (more…)

Building Capacity in Colombia: Truth and Reconciliation

The datasets contributed by 30+ organizations do a wonderful job of tallying the violence that was observed—but they don’t account for the violence that nobody witnessed or documented.

HRDAG Retreat 2022

A week in the California redwoods amongst a hodgepodge of people united by their passion for using quantitative analysis to combat injustice.

About Us

Who We Are The Human Rights Data Analysis Group is a non-profit, non-partisan organization that applies rigorous science to the analysis of human rights violations around the world. We are a team with expertise in mathematical statistics, computer science, demography, and social science. We are non-partisan—we do not take sides in political or military conflicts, nor do we advocate any particular political party or government policy. However, we are not neutral: we are always in favor of human rights. We support the protections established in the Universal Declaration of Human Rights, the International Covenant on Civil and Political Rights, and ...

Patrick Ball Honored as New ASA Fellow

We’re very happy to announce that our executive director, Patrick Ball, has been elected as a Fellow of the American Statistical Association (ASA), as announced by ASA President Nathaniel Schenker. Patrick is one of 63 new ASA Fellows to be honored this year in a ceremony at the Joint Statistical Meetings, which will take place this August 5 in Boston, Massachusetts. (more…)

Our work has been used by truth commissions, international criminal tribunals, and non-governmental human rights organizations. We have worked with partners on projects on five continents.

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